Earth's Guardian Emerges (神様登場!! Kami-sama Tojo!!) is the third episode of the Piccolo Jr. Saga and the one hundred twenty-fifth episode in the Dragon Ball series. The episode first aired on August 31, 1988.
Mr. Popo again tells Goku that he lacks the discipline to ever beat him. Goku decides that he will stay and train with Mr. Popo until he is able to defeat Mr. Popo. At the same time, Tien Shinhan vows to train hard to beat Goku in the next World Martial Arts Tournament. Mr. Popo teaches Goku about discipline. Goku is informed that Kami is much stronger than Mr. Popo and decides he wants to train with them until he is stronger than both of them.
Mr. Popo then teaches Goku about redundant moves. Realizing Goku's determination, Kami reveals himself to Goku, who is shocked by his appearance. He mistakenly attacks Kami, thinking he is King Piccolo. Kami explains that he and King Piccolo used to be one being, but in order to be the Guardian of Earth, he had to cast the evil from his body, which became Piccolo. Kami knew Korin did not tell Goku about Kami and King Piccolo earlier because Korin wanted to be funny. Kami agrees to revive Shenron if Goku stays and trains with Mr. Popo for a while, terms which Goku gladly accepts.
- At the Kame House, where Bulma and the others are talking, Bulma says that Goku went to "meet some guardian of Earth," while in fact he said he was going to meet Kami. In a later episode, Master Roshi tells them that Kami is the Guardian of the Earth, and they freak out about it.
- This is the first episode in the FUNimation dub where Shenron is referred to by name rather than just the Eternal Dragon.
- In a flashback where Goku and Krillin were training with Master Roshi. Goku had his tail, even though his tail was not present when he was training under Master Roshi and it didn't grow back until he was competing in the tournament.
- In the scene where the park rangers find Piccolo in the forest, they are seen riding speeders though the forest. This pays homage to Star War VI, when the storm troopers are driving speeders on the forest moon Endor, in similar fashion.